/Engine/Source/Runtime/MovieScene/Public/MovieSceneCommonHelpers.h
Sort predicate that sorts overlapping sections by row primarily, then by overlap priority
static bool SortOverlappingSections ( const [UMovieSceneSection](API\Runtime\MovieScene\UMovieSceneSection) * A, const [UMovieSceneSection](API\Runtime\MovieScene\UMovieSceneSection) * B )